From: James B. <jb...@gm...> - 2010-09-30 13:01:11
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I want to install the Gumstix Overo in a tight place. How much heat does it emits? Let's say i put it in a box sized 25cmX25cmX10cm. How hot will it get, when running a linux system and Wifi? Thanks! |
From: Michael P. <md...@tr...> - 2010-09-30 17:34:50
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On Thu, Sep 30, 2010 at 9:01 AM, James Bin <jb...@gm...> wrote: > I want to install the Gumstix Overo in a tight place. > How much heat does it emits? > Let's say i put it in a box sized 25cmX25cmX10cm. > How hot will it get, when running a linux system and Wifi? Not too hot. Unless it gets too hot. More seriously, the answer depends on a lot of factors that you haven't mentioned. What is the temperature outside of the box? (If it is room temperature, you probably don't have to worry.) What's the thermal path like from the Overo board to the outside of the box? (It's probably not suspended in the middle of the box with only air around it.) What kind of power management (if any) are you expecting to run on the board? If you plan to idle the CPU or peripherals, which ones, and how heavily burdened will the CPU be? Peter Lawrence posted some power consumption numbers recently: http://sourceforge.net/mailarchive/forum.php?thread_name=000001cb5bc0%24efaa6080%240101a8c0%40EointecVideo&forum_name=gumstix-users That is for an Earth rather than a Fire, so you would need to add power for the WiFi, but it will give you a starting point for your thermal analysis. Michael Poole |
From: Charles M. <man...@ac...> - 2010-10-01 03:24:25
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On Friday 01 October 2010 02:01:02 James Bin wrote: > I want to install the Gumstix Overo in a tight place. > How much heat does it emits? > > Let's say i put it in a box sized 25cmX25cmX10cm. > How hot will it get, when running a linux system and Wifi? Nobody can tell from what you have said here. There are too many vaibales you have not listed. First you need to calc how much power is being dissipated. Use a multimeter. Next you will need to find out the thermal transfer out of the box. That will give you degrees above ambient. Add degrees above ambient to maximum ambient temperature. |